MANUFACTURING METHOD FOR THERMOPLASTIC RESIN COMPOSITION

    公开(公告)号:JP2006347151A

    公开(公告)日:2006-12-28

    申请号:JP2005315593

    申请日:2005-10-31

    Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method for a thermoplastic resin composition which is excellent in heat resistance and impact resistance, and also, exhibits special viscoelastic characteristics when the thermoplastic resin composition is formed into a molded article, fiber or film. SOLUTION: This manufacturing method is used for a thermoplastic resin composition (I) comprising a thermoplastic resin (A) and a resin (B) having a reactive functional group, or for a thermoplastic resin composition (II) comprising a thermoplastic resin (A), a thermoplastic resin (C) being different from the thermoplastic resin (A) and a compound (D) having a reactive functional group. In the manufacturing method for the thermoplastic resin composition, material resins are molten and kneaded under a condition in which a dwell time from the feeding of the material resins into a biaxial extruder to the extrusion thereof is 1 to 30 minutes, and the extrusion amount is 0.01 kg/h per 1 rpm of a screw rotation or more by using a biaxial extruder having a ratio L/D 0 of the screw length L and the screw diameter D 0 of 50 or more. COPYRIGHT: (C)2007,JPO&INPIT

    FLAME-RETARDANT RESIN COMPOSITION AND MOLDED ITEM MADE TEHREFROM

    公开(公告)号:JP2001081269A

    公开(公告)日:2001-03-27

    申请号:JP25555399

    申请日:1999-09-09

    Abstract: PROBLEM TO BE SOLVED: To obtain a flame-retardant resin composition the flame retardance of which is improved without detriment to the stiffness, impact strength, and heat resistance inherent in a thermoplastic resin by compounding a thermoplastic resin composition comprising a rubber-reinforced styrene resin and a non-liquid-crystalline aromatic polyester resin with a phosphorus-base flame retardant. SOLUTION: A thermoplastic resin composition is prepared by compounding (A) 1-99 wt.% rubber-reinforced styrene resin in which the intrinsic viscosity (30 deg.C) of the methyl ethyl ketone-soluble component is 0.25-0.60 dl/g with (B) 99-1 wt.% non- liquid-crystalline polyester resin represented by formula I and having an intrinsic viscosity (in N,N-dimethyleformamide, 30 deg.C) of 0.01-1.0 dl/g. The flame-retardant resin composition is prepared by compounding 100 pts.wt. thermoplastic resin composition with 1-40 pts.wt. phosphorus-based flame retardant. In the formula, Ar1 is at least one kind of group selected from among groups represented by formulas II, III, or the like; and Ar2 is at least one kind of group selected from among groups represented by formulas IV, V, or the like. A fluororesin and/or a silicone compound in an amount of 0.01-3 pts.wt. (based on 100 pts.wt. thermoplastic resin composition) may be compounded into the flame-retardant resin composition.

    FLAME-RETARDANT RESIN COMPOSITION AND MOLDED PRODUCT THEREOF

    公开(公告)号:JP2000256564A

    公开(公告)日:2000-09-19

    申请号:JP5931899

    申请日:1999-03-05

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition causing no metal corrosion when subjected to dry heat treatment, excellent in mechanical properties and flowability, and useful for mechanical parts, electrical/electronic parts, etc., by incorporating a thermoplastic resin with red phosphorus, a phenolic resin and an amine-based compound in specified proportions. SOLUTION: This composition is obtained by incorporating (A) 100 pts. wt. of a thermoplastic resin such as polybutylene terephthalate resin, polyamide resin, polystyrene-based resin or polycarbonate resin with (B) 0.1-30 pts.wt. of red phosphorus (pref. 0.1-1,000 μS/cm in electroconductivity), (C) 0.1-15 pts.wt. of a phenolic resin such as of novolak type, and (D) 0.01-10 pts.wt. of an amine- based compound such as dicyandiamide or triazine-based compound, and furthermore (E) 5-140 pts.wt. of a filler such as glass fibers and/or (F) 0.01-10 pts.wt. of a fluororesin and/or silicone-based resin. Preferably, the other objective molded products including connectors, coil bobbins, relays, switches and housings are produced from the above composition.

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